4.000 in.Lg, 1/2 shell for 2.000 in.Dia tube, tg 6000 insulation, 0.250 in.Thk, al foil cover;
An item composed of one or more materials, molded, compressed, and/or baked into a rigid covering of irregular shapes and sizes. it is designed to cover air ducts and/or air duct fittings used in air conditioning, heating, cooling, pressurizing and de-icing systems to restrict the dissipation of heat. it may completely or partially encase the item for which designed. it may be furnished with or without fillers, cement, and/or separate or attached accessories for installation, (excluding flexible air duct covering and rigid pipe and pipe fitting coverings used in construction and building materials). Excludes insulation blanket, thermal, aircraft; insulation pipe fitting covering, thermal; and insulation sleeving, thermal.
Classification: Other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof)
NSN 2925-00-233-5644
NSN 6105-01-644-5675
NSN 6320-01-021-6633
NSN 5990-01-065-0492
NSN 5835-00-137-5093
NSN 5920-00-081-9156
NSN 4140-01-621-0916
NSN 6240-00-484-1190
NSN 5920-00-185-9587
NSN 5996-01-218-5678
NSN 5950-00-529-0264
NSN 6240-00-991-6929